(3472) Upgren Main-belt Asteroid

Discovered on 1 March 1981 by S. J. Bus at Siding Spring.

Where Upgren is today

MercuryVenusEarthEarthMarsMarsUpgrenUpgren

Seen from above the solar system on 2026-10-14: Upgren is 3.20 au from the Sun and 4.18 au from Earth. Computed from JPL's orbital elements.

Facts

Number3472
Provisional designation1981 EJ10
Orbit classMain-belt Asteroid
Diameter10.9 km (#4,623 largest of 17,440 named asteroids with a measured size)
Albedo0.0500
Rotation period9.44 hours
Absolute magnitude (H)14.02
Orbital period4.49 years
Semi-major axis2.72 au
Perihelion – aphelion2.24 – 3.21 au
Eccentricity0.177
Inclination4.50°
Closest distance between its orbit and Earth's (MOID)1.25 au

Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.

Also discovered on 1 March 1981

More named asteroids discovered by S. J. Bus